A comprehensive quantitative detection and repair process for cracks on the surface of underground structures

Abstract

The invention discloses a comprehensive quantitative detection and repair process for cracks on the surface of underground structures, which belongs to the technical field of underground structure disease control and includes the following steps: dividing the underground structure into n to obtain the image data of the surface of the underground structure; perform image processing, extract the surface crack data, and measure the corresponding crack parameters; obtain the disease index, establish the comprehensive quantitative evaluation index of the underground structure surface crack, and compare it with the allowable value of the index, quantitatively Evaluate the degree of crack damage on the surface of the underground structure, identify the detection section that needs repair and treatment; perform surface crack repair and treatment, and give the repair process and repair effect evaluation method; can analyze the structural surface crack disease in the construction-operation life cycle of the underground structure Effective scientific detection, evaluation, repair and treatment of problems solves the problem that the existing surface crack detection and treatment technology is difficult to scientifically count, classify and identify, and quantitatively evaluate the characteristics and degrees of intricate cracks.

Description

technical field [0001] The invention relates to the technical field of disease control of underground structures, in particular to a comprehensive quantitative detection and repair process for surface cracks of underground structures. Background technique [0002] The statements herein merely provide background related to the present invention and do not necessarily constitute prior art. [0003] All kinds of underground structures such as tunnels (holes), underground stations, underground chambers and underground comprehensive pipe corridors are buried underground and belong to underground concealed projects. The stratum environment such as subsidence loess stratum, fault fracture zone, strong water rich or high confined water, or is affected and restricted by design parameters, concrete construction quality, construction technology level, external environmental load disturbance and other various factors, underground structure During the construction and operation stages, ...

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Problems solved by technology

[0010] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a comprehensive quantitative detection and repair process for cracks on the surface of underground structures, which can obtain three-dimensional images of the inner surface of underground structures and obtain information such as the number, length, and width of cracks, etc. , divided the cracks into three types: axial, oblique and circumferential, and established the axial crack disease index, oblique crack disease index, circumferential crack disease index and crack damage comprehensive quantitative evaluation index, and proposed the surface crack repair The complete set of treatment methods and the quantitative evaluation method of the restoration and treatment effect effectively solve the problem that the existing underground structure surface crack detection and treatment technology is difficult to carry out scientific statistics, classification identification, and quantitative evaluation of the characteristics and degree of intricate cracks, and it is difficult to guide different types of cracks to be scientifically repaired and treated. And it is difficult to accurately control the overall health of underground structures

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